maegul, 
The Fedipact statistics are interesting
7% of active users committed to #fedipact - https://fedidb.org/current-events/anti-meta-fedi-pact
How representative of the user base is this, or are admins gatekeeping here? A large survey would be good to clear that up.
EG, Mastodon, relative to its userbase, seems the most "Meta friendly" with only 57% of fedipact users (but ~80% all users)
Fractal of niche-dom? Fedi ~1% of social media, fedi-pact ~ 10% of fedi. So anti-meta-fediverse ~0.1%?